You can have a virtual pet shark. You can have an inflatable pet shark which swims along in the air. You can have a pet robot shark which swims in water too. Or, you can own an exotic pet and set up a real aquarium with real, living, sharks. Of course, only the very big aquariums in zoos and other displays for the public or inside a corporate office with an unlimited budget, will have large sharks. However, a large shark isn't really a pet. An animal that could eat it's owner (due to a lack of inhibitions or respect for our place in the food chain) is not a pet. Not really.

A nice thing about keeping a pet shark, or several of them, is just watching them swim around. Some how it is very relaxing (almost like meditating) to watch fish swim around. They don't seem to be doing much. It's all fairly repetitive. If you keep a pet shark all they can really do is swim circles around whatever space they have. Swimming laps over and over and over. It must be an awfully dull life for them.

I don't like seeing the small sharks for sale in pet stores. I wonder how many of them die before they are sold to anyone. I'm sure the pet store just keep them to attract shoppers on the weekends they schedule feeding time for the shark(s).

I don't really think sharks should be pets, kept in a tank of water. I don't think any tank is really big enough - unless it's massive enough to create a whole marine or ocean type of environment. There is something ugly about seeing a shark bump into the side of a glass fish tank. So, I'm only keeping the virtual shark pet. Virtual shark pets miss you when you travel and will be there when you get back, still alive (or you can just restart your game).